Pith Number

pith:VQWCH7IL

pith:2020:VQWCH7IL24XWBZM4FQDDQUOBGM

not attested not anchored not stored refs pending

A Dichotomy for the Generalized Model Counting Problem for Unions of Conjunctive Queries

Batya Kenig, Dan Suciu

arxiv:2008.00896 v3 · 2020-08-03 · cs.DB · cs.CC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VQWCH7IL24XWBZM4FQDDQUOBGM}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T02:41:47.713374Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac2c23fd0bd72f60e59c2c063851c1330fac25bfd0c94c901cdbe68e5aa6f1f9

Aliases

arxiv: 2008.00896 · arxiv_version: 2008.00896v3 · doi: 10.48550/arxiv.2008.00896 · pith_short_12: VQWCH7IL24XW · pith_short_16: VQWCH7IL24XWBZM4 · pith_short_8: VQWCH7IL

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/VQWCH7IL24XWBZM4FQDDQUOBGM \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: ac2c23fd0bd72f60e59c2c063851c1330fac25bfd0c94c901cdbe68e5aa6f1f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e494fa85a176dc2a56daef2f1310a62f6f73e4f98c31893efe20c786e3fa20cd",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2020-08-03T14:24:08Z",
    "title_canon_sha256": "c8752c374eae28e741d38a0d70ba2df6b5062681e6285b21e1701d0544a4a1f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2008.00896",
    "kind": "arxiv",
    "version": 3
  }
}